refactor: remove invisible subtitle overlay code

src/config/config.test.ts

@@ -27,7 +27,8 @@ test('loads defaults when config is missing', () => {
   assert.equal(config.discordPresence.updateIntervalMs, 3_000);
   assert.equal(config.subtitleStyle.backgroundColor, 'rgb(30, 32, 48, 0.88)');
   assert.equal(config.subtitleStyle.preserveLineBreaks, false);
-  assert.equal(config.subtitleStyle.hoverTokenColor, '#c6a0f6');
+  assert.equal(config.subtitleStyle.hoverTokenColor, '#f4dbd6');
+  assert.equal(config.subtitleStyle.hoverTokenBackgroundColor, '#363a4fd6');
   assert.equal(config.immersionTracking.enabled, true);
   assert.equal(config.immersionTracking.dbPath, '');
   assert.equal(config.immersionTracking.batchSize, 25);
@@ -136,6 +137,44 @@ test('parses subtitleStyle.hoverTokenColor and warns on invalid values', () => {
   );
 });
 
+test('parses subtitleStyle.hoverTokenBackgroundColor and warns on invalid values', () => {
+  const validDir = makeTempDir();
+  fs.writeFileSync(
+    path.join(validDir, 'config.jsonc'),
+    `{
+      "subtitleStyle": {
+        "hoverTokenBackgroundColor": "#363a4fd6"
+      }
+    }`,
+    'utf-8',
+  );
+
+  const validService = new ConfigService(validDir);
+  assert.equal(validService.getConfig().subtitleStyle.hoverTokenBackgroundColor, '#363a4fd6');
+
+  const invalidDir = makeTempDir();
+  fs.writeFileSync(
+    path.join(invalidDir, 'config.jsonc'),
+    `{
+      "subtitleStyle": {
+        "hoverTokenBackgroundColor": true
+      }
+    }`,
+    'utf-8',
+  );
+
+  const invalidService = new ConfigService(invalidDir);
+  assert.equal(
+    invalidService.getConfig().subtitleStyle.hoverTokenBackgroundColor,
+    DEFAULT_CONFIG.subtitleStyle.hoverTokenBackgroundColor,
+  );
+  assert.ok(
+    invalidService
+      .getWarnings()
+      .some((warning) => warning.path === 'subtitleStyle.hoverTokenBackgroundColor'),
+  );
+});
+
 test('parses anilist.enabled and warns for invalid value', () => {
   const dir = makeTempDir();
   fs.writeFileSync(
@@ -597,19 +636,15 @@ test('warns and ignores unknown top-level config keys', () => {
   assert.ok(warnings.some((warning) => warning.path === 'unknownFeatureFlag'));
 });
 
-test('parses invisible overlay config and new global shortcuts', () => {
+test('parses global shortcuts and startup visibility flags', () => {
   const dir = makeTempDir();
   fs.writeFileSync(
     path.join(dir, 'config.jsonc'),
     `{
       "shortcuts": {
         "toggleVisibleOverlayGlobal": "Alt+Shift+U",
-        "toggleInvisibleOverlayGlobal": "Alt+Shift+I",
         "openJimaku": "Ctrl+Alt+J"
       },
-      "invisibleOverlay": {
-        "startupVisibility": "hidden"
-      },
       "bind_visible_overlay_to_mpv_sub_visibility": false,
       "youtubeSubgen": {
         "primarySubLanguages": ["ja", "jpn", "jp"]
@@ -621,9 +656,7 @@ test('parses invisible overlay config and new global shortcuts', () => {
   const service = new ConfigService(dir);
   const config = service.getConfig();
   assert.equal(config.shortcuts.toggleVisibleOverlayGlobal, 'Alt+Shift+U');
-  assert.equal(config.shortcuts.toggleInvisibleOverlayGlobal, 'Alt+Shift+I');
   assert.equal(config.shortcuts.openJimaku, 'Ctrl+Alt+J');
-  assert.equal(config.invisibleOverlay.startupVisibility, 'hidden');
   assert.equal(config.bind_visible_overlay_to_mpv_sub_visibility, false);
   assert.deepEqual(config.youtubeSubgen.primarySubLanguages, ['ja', 'jpn', 'jp']);
 });

src/config/definitions.ts

@@ -29,7 +29,6 @@ const {
   subsync,
   auto_start_overlay,
   bind_visible_overlay_to_mpv_sub_visibility,
-  invisibleOverlay,
 } = CORE_DEFAULT_CONFIG;
 const { ankiConnect, jimaku, anilist, jellyfin, discordPresence, youtubeSubgen } =
   INTEGRATIONS_DEFAULT_CONFIG;
@@ -54,7 +53,6 @@ export const DEFAULT_CONFIG: ResolvedConfig = {
   jellyfin,
   discordPresence,
   youtubeSubgen,
-  invisibleOverlay,
   immersionTracking,
 };
 

src/config/definitions/defaults-core.ts

@@ -12,7 +12,6 @@ export const CORE_DEFAULT_CONFIG: Pick<
   | 'subsync'
   | 'auto_start_overlay'
   | 'bind_visible_overlay_to_mpv_sub_visibility'
-  | 'invisibleOverlay'
 > = {
   subtitlePosition: { yPercent: 10 },
   keybindings: [],
@@ -28,7 +27,6 @@ export const CORE_DEFAULT_CONFIG: Pick<
   },
   shortcuts: {
     toggleVisibleOverlayGlobal: 'Alt+Shift+O',
-    toggleInvisibleOverlayGlobal: 'Alt+Shift+I',
     copySubtitle: 'CommandOrControl+C',
     copySubtitleMultiple: 'CommandOrControl+Shift+C',
     updateLastCardFromClipboard: 'CommandOrControl+V',
@@ -55,7 +53,4 @@ export const CORE_DEFAULT_CONFIG: Pick<
   },
   auto_start_overlay: false,
   bind_visible_overlay_to_mpv_sub_visibility: true,
-  invisibleOverlay: {
-    startupVisibility: 'platform-default',
-  },
 };

src/config/definitions/defaults-subtitle.ts

@@ -4,7 +4,8 @@ export const SUBTITLE_DEFAULT_CONFIG: Pick<ResolvedConfig, 'subtitleStyle'> = {
   subtitleStyle: {
     enableJlpt: false,
     preserveLineBreaks: false,
-    hoverTokenColor: '#c6a0f6',
+    hoverTokenColor: '#f4dbd6',
+    hoverTokenBackgroundColor: '#363a4fd6',
     fontFamily:
       'M PLUS 1, Noto Sans CJK JP Regular, Noto Sans CJK JP, Hiragino Sans, Hiragino Kaku Gothic ProN, Yu Gothic, Arial Unicode MS, Arial, sans-serif',
     fontSize: 35,

src/config/definitions/options-subtitle.ts

@@ -27,6 +27,12 @@ export function buildSubtitleConfigOptionRegistry(
       defaultValue: defaultConfig.subtitleStyle.hoverTokenColor,
       description: 'Hex color used for hovered subtitle token highlight in mpv.',
     },
+    {
+      path: 'subtitleStyle.hoverTokenBackgroundColor',
+      kind: 'string',
+      defaultValue: defaultConfig.subtitleStyle.hoverTokenBackgroundColor,
+      description: 'CSS color used for hovered subtitle token background highlight in mpv.',
+    },
     {
       path: 'subtitleStyle.frequencyDictionary.enabled',
       kind: 'boolean',

src/config/definitions/template-sections.ts

@@ -40,15 +40,6 @@ const CORE_TEMPLATE_SECTIONS: ConfigTemplateSection[] = [
     notes: ['Hot-reload: shortcut changes apply live and update the session help modal on reopen.'],
     key: 'shortcuts',
   },
-  {
-    title: 'Invisible Overlay',
-    description: ['Startup behavior for the invisible interactive subtitle mining layer.'],
-    notes: [
-      'Invisible subtitle position edit mode: Ctrl/Cmd+Shift+P to toggle, arrow keys to move, Enter or Ctrl/Cmd+S to save, Esc to cancel.',
-      'This edit-mode shortcut is fixed and is not currently configurable.',
-    ],
-    key: 'invisibleOverlay',
-  },
   {
     title: 'Keybindings (MPV Commands)',
     description: [

src/config/resolve/subtitle-domains.ts

@@ -100,6 +100,8 @@ export function applySubtitleDomainConfig(context: ResolveContext): void {
     const fallbackSubtitleStyleEnableJlpt = resolved.subtitleStyle.enableJlpt;
     const fallbackSubtitleStylePreserveLineBreaks = resolved.subtitleStyle.preserveLineBreaks;
     const fallbackSubtitleStyleHoverTokenColor = resolved.subtitleStyle.hoverTokenColor;
+    const fallbackSubtitleStyleHoverTokenBackgroundColor =
+      resolved.subtitleStyle.hoverTokenBackgroundColor;
     resolved.subtitleStyle = {
       ...resolved.subtitleStyle,
       ...(src.subtitleStyle as ResolvedConfig['subtitleStyle']),
@@ -154,6 +156,24 @@ export function applySubtitleDomainConfig(context: ResolveContext): void {
       );
     }
 
+    const hoverTokenBackgroundColor = asString(
+      (src.subtitleStyle as { hoverTokenBackgroundColor?: unknown }).hoverTokenBackgroundColor,
+    );
+    if (hoverTokenBackgroundColor !== undefined) {
+      resolved.subtitleStyle.hoverTokenBackgroundColor = hoverTokenBackgroundColor;
+    } else if (
+      (src.subtitleStyle as { hoverTokenBackgroundColor?: unknown }).hoverTokenBackgroundColor !==
+      undefined
+    ) {
+      resolved.subtitleStyle.hoverTokenBackgroundColor = fallbackSubtitleStyleHoverTokenBackgroundColor;
+      warn(
+        'subtitleStyle.hoverTokenBackgroundColor',
+        (src.subtitleStyle as { hoverTokenBackgroundColor?: unknown }).hoverTokenBackgroundColor,
+        resolved.subtitleStyle.hoverTokenBackgroundColor,
+        'Expected string.',
+      );
+    }
+
     const frequencyDictionary = isObject(
       (src.subtitleStyle as { frequencyDictionary?: unknown }).frequencyDictionary,
     )